body{
    background-color: rgb(138, 133, 133);
}
#zhuce{
    width: 400px;
    height: 480px;
    margin: 50px auto;
    padding-top: 1px;
    background-color: white;
    text-align: center;
    p{
        margin-bottom: 20px;
    }
    .icon-Nike{
        font-size: 50px;
    }
    #username,#password{
        width: 300px;
        height: 30px;
        // margin-bottom: 20px;
    }
    button{
        width: 300px;
        height: 50px;
        margin-bottom: 5px;
        background-color: black;
        border-radius: 5px;
        border: 0;
        color: white;
        font-size: 20px;
    }
    .yanzhen1,.yanzhen2{
        font-size: 12px;
    }
}